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Wonder if you guys can help with this one.
I am about to setup DKIM on my custom domain in 365 - I think I got the core of the setup ready but there is one thing that I need to be sure of: email relays and DKIM
We have an internally mail relay which is used for 3rd party systems hosted in-house to send emails and reports tocustomers.
This relay server connects out to Office365 thru a connector setup.
My question is do I need to enable DKIM on the internal relay server? I cannot see any options on the exchange console for it or because the last hop before going out is the O365 Exchange server DKIM will be stamped there and there is nothing to worry about?
Thanks, M
No need to setup anything on the internal server, no. The DKIM stamping will be handled by Office 365 before sending the message to the external recepient.
Thanks Andy for your lightning fast response.
I am ready to DKIM now!
M
Awesome. Hey, if you don't mind please mark any accepted answer so we can close this up. Thanks!
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It's great that you can get useful information here, If you have any other issues about Exchange, please feel free to post with related tags.
Have a nice day.
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